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Radiant|Lab Grown|IGI

1.30ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG648436048

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG648436048

Diamond specifications and retailer prices

From $219 AUD
$154 USD
As of October 30, 2026
Save $1,269 AUD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,489 AUD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.3ct lab-grown radiant diamond

This 1.3ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648436048 or 648436048. Listed at 16 retailers as of October 30, 2026, with prices from $219 to $1,489, a $1,269 spread on the same certified stone. Reve Diamonds lists it at $1,489. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648436048
Dimensions7.39 × 5.34 × 3.60 mm
L/W Ratio1.38
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm5.34 mm1.30 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648436048
Side View
Table 60.0%Crown 40.6°Girdle: MED-STKPavilion 30°Culet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $474 AUD|Low: $219 AUD|High: $1,489 AUD|Avg: $687 AUD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Reve Diamonds
November 2, 2026
Retailer 5$219 AUD
Retailer 3$243 AUD
Retailer 12$272 AUD
Retailer 16$272 AUD
Retailer 4$326 AUD
Retailer 11$367 AUD
Retailer 1$474 AUD
Retailer 10$529 AUD
Retailer 2$634 AUD
Retailer 15$698 AUD
Retailer 8$774 AUD
Retailer 6$871 AUD
Retailer 13$921 AUD
Retailer 7$950 AUD
Retailer 14$1,182 AUD
Retailer 9$1,267 AUD
Reve Diamonds$1,489 AUD

18 data points across 17 retailers

16 retailers$219 AUD to $1,489 AUD

A
Cheapest Retailer
-
$219 AUD
$154 USD
A
Retailer 2
-
$243 AUD
$171 USD
View
Final sale: no returns
Retailer 3
-
$272 AUD
$191 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$272 AUD
$191 USD
View
Retailer 5
-
$326 AUD
£180 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$367 AUD
$258 USD
View
A
Retailer 7
-
$474 AUD
£262 GBP
View
A
Retailer 8
-
$529 AUD
£292 GBP
View
B+
Retailer 9
-
$634 AUD
$445 USD
View
B+
Retailer 10
-
$698 AUD
$490 USD
View
B+
Retailer 11
-
$871 AUD
$612 USD
View
B+
Retailer 12
-
$921 AUD
$647 USD
View
B
Retailer 13
-
$950 AUD
$668 USD
View
Retailer 14
-
$1,182 AUD
$830 USD
View
Price last confirmed 11 days ago
B
Retailer 15
-
$1,267 AUD
£701 GBP
View
Most Expensive
B
Reve Diamonds
F3D683A23 · Nov 1
$1,489 AUD
$1,046 USD
View
15 more retailers have this diamond
Prices start from $219 AUDSave up to $1,269 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.30ct Radiant
$219 AUD